What is it?

Epileptic seizures, are seizures or periods of unusual behavior, sensations and sometimes loss of awareness. Seizures result from bursts of electrical activity in the brain that temporarily affect how it works. Seizures can be focal or general. Focal seizures, is when seizures appear to result from abnormal activity in just one area of your brain. Generalized seizures, is when all areas of the brain are involved.
Although an epileptic seizure can be caused by various reasons, external causes are a common trigger of epileptic seizures. External factors include drug intoxication, head trauma, infections, lack of sleep, dehydration, stress, alcohol, flashing lights and nutrient deficiencies.